RC220x

©2005 Radiocrafts AS

RC220x Data Sheet (rev. 1.0)

Page 5 of 17

31

GND

System ground

32

RF

RF I/O connection to antenna, 50 Ohm. Do not connect for integrated

antenna or connector variant.

33

GND

System ground

34

GND

System ground

35

Reserved

Do not connect, PB0

36

SCLK

SPI interface must be shared with MAC, PB1, ISP SCK

37

SI

SPI interface must be shared with MAC, PB2, PDI for RC2202

38

SO

SPI interface must be shared with MAC, PB3, PDO for RC2202

39

PB4

Digital I/O, PB4

40

Reserved

Do not connect, PB5

41

Reserved

Do not connect, PB6

42

PB7

Digital I/O, PB7

43

TOSC2

Internal 32.768 kHz oscillator

44

RESET

Internal MCU reset. Active low with internal pull-up.

45

Reserved

Do not connect, PD0 / INT0

46

Reserved

Do not connect, PD1 / INT1

47

RXD1

Same as pin 9

48

TXD1

Same as pin 8

49

Reserved

Do not connect, PD4

50

RTS1

Same as pin 6

51

Reserved

Do not connect, PD6

52

CTS1

Same as pin 5

53

GND

System ground

Note 1: UART interface: Pin 8 TXD1, pin 9 RXD1, pin 5 CTS1, pin 6 RTS1

Note 2: SPI interface: Pin 36 SCLK, pin 37 SI, pin 38 SO (chip select at any digital I/O) must be shared with internal

MAC software

Note 3: ISP (In-System Programming) interface: Pin 36 SCK, pin 21 PDI, pin 22 PDO, pin 44 RESET for RC2200 and

RC2204. Pin 36 SCK, pin 37 PDI, pin 38 PDO, pin 44 RESET for RC2202. See page 8 for more information.

Note 4: JTAG interface: Pin 12 TDI, pin 13 TDO, pin 14 TMS, pin 15 TCK, pin 44 RESET. See page 8 for more

information.